#include<iostream>

#define M 100

using namespace std;

//该文件用来测试linux中的g++编译器的预处理 编译 汇编 链接等过程
int main()
{
    cout << "M:" << M << endl ;
    cout << "it's a test fail1" << endl ;
//  cout << "it's a test fail2" << endl ;
//  cout << "it's a test fail3" << endl ;
//  cout << "it's a test fail4" << endl ;
//  cout << "it's a test fail5" << endl ;
    cout << "it's a test fail6" << endl ;

    // 条件编译
#ifdef DEBUG
    cout << "DEBUG!" << endl ;
#else
    cout << "RELEASE!" << endl ;
#endif
}
